Hi Selim,
Sorry for this late reply. I fixed the problem immediatly in 2.23/09
and forgot to answer your mail.
Thanks for having reported the problem.
Rene Brun
Selim Issever wrote:
>
> Hi all,
>
> I have a little problem with drawing ntuples/trees. In my case I plot a rate
> versus time (rate:time) and dont want to have markers, but lines drawn in
> between. So i use the proposed approach:
>
> aNT->SetEstimate(aNT->GetEntries());
> aNT->Draw("rate:time", "", "goff,same");
> Int_t selR = aNT->GetSelectedRows();
> Float_t *xArr = aNT->GetV2();
> Float_t *yArr = aNT->GetV1();
>
> TGraph *g = new TGraph(selR, xArr, yArr);
> g->Draw("l");
>
> this works fine, except when I have entires outside the histogram region
> (which I assume to be from 3 to 7 in the example below):
>
> the '.'s represent the real data, which are not drawn. the rest is, what I get
> as a plot.
>
> 9 ........
> 8 .
> 7 /\
> 6 / \
> 5 / \
> 4 / \------
> 3 -/
> 2
> 1
> ^-- here is a sudden drop of the rate
>
> what I'd like to have is something like this:
>
> 9 ........
> 8 .
> 7 / |
> 6 / |
> 5 / |
> 4 / |------
> 3 -/
> 2
> 1
>
> the first plot somehow mock data,... If you are not an expert and know what
> kind of data you are expecting, this could quite foul you,.. Is there a way to
> make the plots the way I'd like to have them? resizing the plotting area isnt
> a solution (esp when using log plots and having the trouble at the lower end).
>
> Thanks a lot for your help and time in advance!
> Best Wishes,
> Selim
>
> --
> Selim Issever | Tel: 040 8998-2843 +- "Da packst Du ja schon wieder
> DESY-F15 | Fax: 040 8998-4033 +- Information rein." Diplomand
> Notkestr. 85 | selim.issever@desy.de +- zum Verbesserungsvorschlag --
> 22603 Hamburg/Germany | http://www.physik.uni-dortmund.de/~issevers
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